CISA Domain 4: Systems Availability & Capacity Management

This episode is part of the CISA Domain 4 Deep-Dive Series, a structured curriculum that covers every subtopic in the 26% Information Systems Operations & Business Resilience domain. Each episode blends CISA exam reasoning with real-world audit leadership.

In Episode 28, we explore a scenario where a business-critical authentication server had perfect uptime — yet operated at dangerously high capacity for months. When demand spiked, it failed instantly. This episode reveals the difference between operational luck and resilience through proactive planning.

You’ll learn:

✔ What CISA really tests under Availability & Capacity Management

✔ Why uptime does NOT equal reliability

✔ How junior auditors view capacity vs. how audit leaders analyze trends and thresholds

✔ What evidence auditors must review: metrics, forecasting, threshold alerts, SLA performance

✔ How hidden capacity constraints create predictable failures

✔ How to evaluate operational maturity in capacity governance

This episode builds true capability in assessing operational resilience.

If you’re preparing for CISA or sharpening your audit judgment,

explore the CISA Gold Standard Series by M.G. Vance on Amazon.

📘 Amazon link: ⁠https://www.amazon.com/dp/B0FX526S3V⁠

We don’t just help you pass.

We prepare you to become formidable in the field.

CISA Domain 4: Shadow IT & End-User Computing

This episode is part of the CISA Domain 4 Deep-Dive Series, a structured curriculum that covers every subtopic in the 26% Information Systems Operations & Business Resilience domain. Each episode blends CISA exam reasoning with real-world audit leadership.

In Episode 27, we explore how a simple spreadsheet evolved into a critical, undocumented, untested system used for financial adjustments — invisible to IT, unsupported by change controls, and full of hidden logic. This scenario highlights the dangers of end-user tools becoming production systems without governance.

You’ll learn:

✔ What CISA really tests under Shadow IT & End-User Computing

✔ Why EUC tools become high-risk when they support critical processes

✔ How junior auditors think vs. how audit leaders assess governance maturity

✔ What evidence auditors must review: formulas, macros, access rights, documentation

✔ How to identify ungoverned systems that silently shape business decisions

✔ How to evaluate risk and recommend migration to supported platforms

This episode is foundational for mastering operational and governance risks in Domain 4.

If you’re preparing for CISA or sharpening your audit judgment,

explore the CISA Gold Standard Series by M.G. Vance on Amazon.

📘 Amazon link: ⁠https://www.amazon.com/dp/B0FX526S3V⁠

We don’t just help you pass.

We prepare you to become formidable in the field.

CISA Domain 4: System Interfaces

This episode is part of the CISA Domain 4 Deep-Dive Series, a structured curriculum that covers every subtopic in the 26% Information Systems Operations & Business Resilience domain. Each episode blends CISA exam reasoning with real-world audit leadership.

In Episode 26, we examine a scenario where a data interface ran “successfully” — yet silently dropped hundreds of transactions due to unmapped fields. The business believed the interface was healthy because no errors appeared, even though financial data was incomplete.

You’ll learn:

✔ What CISA really tests under System Interfaces

✔ Why interfaces can succeed technically but fail functionally

✔ How junior auditors think vs. how audit leaders analyze data flow integrity

✔ What evidence auditors must review: mapping, transformations, source–target reconciliation

✔ How missing mappings, stale master data, and weak exception handling cause silent errors

✔ How to evaluate interface governance and change coordination

This episode builds deep mastery in one of the most exam-tested areas of Domain 4.

If you’re preparing for CISA or sharpening your audit judgment,

explore the CISA Gold Standard Series by M.G. Vance on Amazon.

📘 Amazon link: ⁠https://www.amazon.com/dp/B0FX526S3V⁠

We don’t just help you pass.

We prepare you to become formidable in the field.